Combined transmitter and receives



(No Model.) 3 Sheets-Sheet 1-.

J. M. JOY.

COMBINED TRANSMITTER AND RECEIVER. No. 604,533. Patented May 24, 1898.

(No Model.) 3 Sheets-Sheet 2 J. M. JOY. COMBINED TRANSMITTER AND RECEIVER. No. 604,533. Patented May 24,1898.

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COMBINED TRANSMITTER AND RECEIVER.

No. 604,533. Patented May 24,1898.

! l [w i l l UNTTED Srarns Parent Olrrrcn,

JOHN M. JOY, OF NEWV YORK, N. Y., ASSIGNOR TO THE PRINTING TELEGRAPH NEWS COMPANY, OF SAME PLACE.

CQWlB INED TRANSMlTTER AND RECEIVER.

SPECIFICATION forming part of Letters Patent No. 604,533, dated May 24, 1898..

Application filed June 21, 1897. Serial No. 641,619. (No model.)

To all whom it may concern:

Be it known that I, JOHN M. JOY, a citizen of the United States,residing at New York, in the county and State of New York, have in- Vented certain new and useful Improvements in a Combined Transmitter and Receiver, of which the following is a specification.

My invention relates to printing-telegraph apparatus, and more particularly to the class known as page-printers, and it has for its object to improve and simplify the construction and arrangement of the apparatus; and to these ends my invention consists in the various features of construction and arrangement of parts having the general mode of operation substantially as hereinafter more particularly set forth.

Referring to the accompanying drawings, in which I have illustrated sufficient of an apparatus embodying my invention to enable those skilled in the art to understand the principles thereof, Figure 1 is a plan View, some of the parts being broken away. Fig. 2 is an end view of the main portions of the apparatus, other parts being eliminated for the sake of clearness. Fig. 3 is a transverse vertical section showing the main elements, other parts being omitted; and Fig. 4 is a diagrammatic representation of the main opperating parts and circuits.

In printing-telegraph apparatus, especially of the class of page-printers, it is common to have two separate instruments, one constructed and operating as a transmitter and the other as a receiver; and it is one of the main objects of my present invention to combine these two instruments in one apparatus, thereby simplifying and cheapening the cost of the same; and it is a further object to so construct and arrange the operative parts of this combined apparatus that they may be operated from a single source of power, as an electric or other motor.

It is also the object of this invention to ar- 5 range the main operating parts and so connect them with the source of power that they shall be under a constant stress tending to operate them, their operations being controlled by escapements, keys, or other simi- 5o lar means.

lVhile my invention may be embodied in various structures, I have shown it in connec tion with a receiving apparatus having the general characteristics described and claimed in application Serial No. 640,608, andI therefore do not deem it necessary to describe all the operating parts in detail, andI have also shown a transmitter of the class illustrated in Patent No 534,639, and I therefore do not deem it necessary to describe all the details of this apparatus, as it is sufficient for the purposes of my present invention to describe the general features of the transmitter and receiver and to more particularly describe the manner of combining them into one instrurnent, so as to accomplish the objects of my invention.

Referring to the drawings, A is the base, upon which are mounted suitable standards A A A connected by rods A A and by a cross-plate, (not shown,) but connected to the standards A A at the points A, and supporting the paper-holding devices and other appliances. (Not necessary to be shown herein.)

Mounted in the frame is a type-wheel shaft 13, on which is mounted the type-wheel C, so as to rotate with the shaft, but to slide longitudinally thereon, and mounted on or supported by the rods A A is a carriage D,which is arranged to move the type-wheel longitudinally on the shaft in a manner well understood. The type-wheel shaft is under stress from the source of power hereinafter set forth, tending to rotate it in the proper direction, and its rotation is controlled by the escapewheel B, fixed on the shaft B, which in turn is controlled by an escapement E operated by a magnet M. Also mounted in the frame is the printing-shaft E, on which is mounted a worm-wheel E, so that it rotates with the shaft while it is moved longitudinally by the carriage D. The shaft E is likewise under tension, tending to rotate the same, and is controlled by an escapement Eiwhich in turn is controlled by a magnet M. The worm-wheel E engages with the rack-bar F, and the carriage is returned to its normal position by any suitable means, as the chain D.

The paper guides and holding devices are omitted in the drawings for purposes of clearness, it being sufficient to say that the paper is drawn from a roll G up between the type wheel C and the printing devices carried on the carriage in the usual way.

The transmitter comprises, essentially, a circuit-controlling shaft N, mounted on the standards, which shaft is provided with a series of pins 0, arranged around its surface in the present instance and adapted to engage the respective key-levers P, the key-levers being pivoted at p and being under the stress of a spring 19, and in the present instance provided at their inner ends with beveled faces p engaging the rod (1 of the retaining device Q,which is under the stress of a spring Q and operates to hold the shaft N in position, with its pin against one key until another key is struck, when the retaining device will be released, allowing the shaft to rotate until the corresponding pin engages the lever,when the shaftis again stopped in a manner more particularly set forth hereinafter. In this construction the key-levers may be said to act as an escapement for the shaft N of the transmitter, and this shaft is under stress from the motive power, and its rotation is controlled by the escapement.

Connected to be operated by the shaft N is a circuit-controller R, which may be of any desired construction, but is shown in the present instance in a cylindrical form having circuit-contacts r r, with brushes 0* bearing thereon, and so arranged that the circuit will be reversed in accordance with the rotation of the shaft. In the present instance the circuit-controller is relatively small, but is driven at a higher rate of speed than the shaft, and the contacts are arranged so that the reversals correspond with the arrangement of the pins on the shaft.

There is a switch device S, also mounted on the base and connected to operate the switches, the details of which do not need to be described herein, as they form no part of the present invention. Also mounted on the base' is a motor H, shown in the present instance as an electric motor. The pinion II, which is connected in this instance to the armature-shaft, also connects with a train of gears H H H 1-1, which are connected in some suitable way to the operative rotating shafts of the apparatus, so as to put them under tension, so that the motor can operate continuously and the operation of the shafts of the receiver and transmitter be controlled by the operator through the escapements or other suitable devices in accordance with the work being done.

\Vhile various means may be used for connecting the train of gear to the operatingshafts, I have shown as connecting the shaft N with the gear 1-1 a friction-clutch device comprising a ring N, secured to the gearwheel H and a spider N bearing on the face of the ring, and a spring N bearing on the spider and controlled by a set-nut N constituting what may be termed a spring-actuated friction-clutch. lVhile this form of tension by the rotation of the gear.

'tation of the shaft.

connection is operative, a more satisfactory connection between the gears and the shaft is shown in connection with the shafts B and E. In these cases the gear-wheels H and H are made in the form of box-gears loosely mounted on their respective shafts, and rigidly mounted on the shaft is a hub h, having an annular projection 7L2 and provided with a pin h, to which is secured the inner end h of a coiled spring h", the outer end of which is free and rests on the inner surface of the outer wall of the box-gear. The gears V H and H rotate constantly from the source of power and thus tend to wind up the spring it around the annular projection or collar 71 putting stress on the shaft to which it is connected, and this stress will be commensurate with the power of the spring h. The pressure of the free end of the spring against the inner periphery of the box-gear is sufficiently great for the coiled spring to be put under WVhen this tension has reached a certain amount, however, the free end of the spring slips around the drum, thus making a simple and effective flexible coupling between the motive power and the driven shafts, tending to rotate the shafts, which rotation, however, is

controlled by the escapement or some other similar means.

In Fig. 4 the main operating parts are illustrated in perspective or diagrammatically, together with the circuits, the main features of the receiving instrument at the distant station being partially shown and lettered to icorrespond with the similar parts of the receiver at the transmitting-station, the parts being designated by an additional letter a.

It will be seen that the circuit-controlling shaft N,which is under a constant stress from the same source of power as are the printingshaft and the type-wheel shaft of the receiver is controlled by the keys P, and is connected to drive the commutator R at a higher rate of speed in the present instance than the re- This commutator, as shown, is an eighth-part commutator, consisting of two sections r r, insulated from each other, each section having four prongs arranged to intermesh with each other. There is a battery X or other source of electric power connected by the brushes r r so as to 1 furnish current to each portion of the commutator, and there are two brushes 1' bearing on opposite sides of the commutator and connected to the line-circuit and so arranged as to make contact with the prongs or projections of the commutator and to send reversals of current to line. Connected with one of the brushes r is a conductor 1, leading to a switch 2, and from this switch is a conductor 3, including the polarized magnet M, controlling the escapement B and connected to the printing-magnet M, and leading thence to line to the distant station. Connected to the other brush r is a conductor 5, leading to the distant station and in- IIO cluding the polarized magnet M and the print ing-magnet M of the distant receiver, and leading from the polarized magnet M is a conductor 6, terminating at the switch 2. If the switch 2 is moved to connect the conductor 1 with conductor 3, it will be seen that the impulses from the com mutator R pass through the magnet M of the home receiver as well as the magnet M thereof and pass to line, and supposing the conductor 3 to be connected to the conductor 6 the current also passes through the polarized magnet M of the distant instrument and the printing-magnet M thereof and returns by the conductor 5, and with this arrangement the receiving instruments at the home and distant stations will correspond to the impulses from the home transmitter controlled by the circuit-controlling shaft N, and the operator of the home transmitter will have before him a reproduction of the message sent to the distant receiver. Supposing the switch 2 to be moved in connection with conductor 6, the current from the home transmitter will pass through conductor 1, conductor 6, directly to the magnets M M of the receiver at the distant station, back by the conductor5, and the receiver only at the distant station will respond to the message sent by the home transmitter. At the same time another transmitter from the said distant station or another being properly connected to the conductor 3 will operate the home receiver, so that one message may be received at the home receiver and the same' or another message may be transmitted by the home transmitter to a distant receiver.

It may be remarked that the polarized magnets M and M will correspond to the rapid alternations of current from the commutator R, while the coils of the printing-magnets M and H are so arranged as to be inoperative to the rapid reversals of current caused by the motion of the commutator and only opcrate when an impulse in either direction is prolonged, as is usual in this class of machines.

From this construction and arrangement of parts it will be seen that I am enabled to combine a transmitter and receiver in one apparatus, occupying practically the position and space of only one of the machines separately considered. Moreover, the key-levers are arranged under the printing apparatus of the receiver and in such a position that the operator can read what is printed by the receiver and see whether he is sending the proper message, or he canreceive a message on the receiver and transmit it to another line by the transmitter without reproducing the message on the receiver.

The circuits of the apparatus can be arranged in any desired way, and in Fig. 4 one arrangement is shown, and, as above intimated, the receiver may record the message beingsent by the transmitter arranged on the same base or may record a message being sent from a distant transmitter.

It will be seen that but one source of power is used and practically the same train of wheels as is ordinarily used in a receiver;

that the power-driven shafts are under tension or stress through the medium of the tension devices connecting them to the train of gear, and when they are permitted to operate through the manipulation of the escapements, either in the form of an electromagnetic escapement or the key-levers of the transmitter or some other form of escapement, the shafts will immediately be rotated in accordance with the operation of the escapements so as to receive or transmit the proper signals.

In this specification and the accompanying drawings I have described and illustrated sufficient of transmitting and receiving in struments to explain my invention so that it can be made use of by those skilled in the art, and it is understood that my invention is not limited to the details of construction of either of these instruments, nor to the specific details whereby they are arranged and combined to make a single printing-telegraph apparatus, as my present invention resides in the broad idea of combining the two instruments in a single apparatus, substantially in the manner indicated, whereby they are operated from a single source of power, and, further, whereby the driving or operating parts are under a constant stress, tending to operate the parts,which parts, however, are controlled by escapements or some similar devices, and whereby the transmitting and receiving instruments may be used in any desired. manner in sending and receiving messages.

It is especially to be noticed that in accordance with my invention the type-wheel shaft and printing-shaft of the receiver and the circuit-controlling shaft of the transmitter are all driven from a single source of power and that these shafts are under a constant stress tending to operate them when the machine is in operation and their operations are controlled by escapements or similar devices. The advantages of this construction and arrangement need not beset forth herein,as they will be fully appreciated by those skilled in the art. Furthermore, while I have shown electricity as the motive power for operating the apparatus and for controlling the same, and that is the preferred manner of accomplishing these results, my invention includes other equivalent means.

What I claim is- 1. In a printing telegraph apparatus, a type-wheel carried rotatively by a shaft, a carriage to move the type-wheel longitudinally on the shaft, a transmitter having a circuitcontrolling shaft, a motor connected to operate the type-wheel, the carriage and the circuit-controlling shaft and arranged to exert a constant stress upon the same, and escapements controlling the operation of the typewheel, carriage and transmitter-shaft, substantially as described.

2. In a printing telegraph apparatus, a

IIO

type-wheel carried rotati vely by a shaft, a carriage to. move the type-Wheel longitudinally on the shaft, a transmitter having a circuitcontrolling shaft, and a single motor connected to operate the type-wheel, the carriage and the circuit-controlling shaft and arranged to exert a constant stress upon the same, substantially as described.

3. In a printing telegraph apparatus, a type-Wheel carried rotatively by a shaft, controlling mechanism for determining the movements of the type-wheel, a carriage connected to move the type-wheel longitudinally on the shaft, a shaft for moving the carriage, controlling mechanism for determining the movements of said shaft, a transmitter having a circuit-controlling shaft, means for controlling the movements of the shaft, a motor, and connections between the motor and said shafts whereby they are put under constant stress tending to propel the same, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

JOHN M. JOY.

Witnesses:

JNo. J FARBRIDGE, VICTOR ASCHOFF. 

